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Standards GB are Chinese national standards, which are issued by China's Standardization Administration Office (SAC).
Chinese national standards are used all over China commonly labeled as GB standards. They determine the united production requirements regarding product safety and quality .
GB standards are often modified or created according to the international standards of ISO, IEC or any other international level.
Although, they are largely harmonized, GB standards may differ from international standards .
Approximately 15% of all GB standards are obligatory and they can be identified according to the prefix GB, after which the code of the standards follows:
GB – Obligatory national standards
GB/T – Optional national standards
GB/Z – National steering technical document
Nickel and its alloy sheets and strips for electronic tube
WITHDRAWN published on 31.3.1989
Selected format:Leaded brass strips for special purpose
WITHDRAWN published on 31.3.1989
Selected format:End mills with short Morse taper shank
WITHDRAWN published on 6.12.1973
Selected format:End mills with shot Morse taper shank
WITHDRAWN published on 10.2.2004
Selected format:Copper and copper alloy strips for detonator
WITHDRAWN published on 31.3.1989
Selected format:Copper strip for cables
WITHDRAWN published on 31.3.1989
Selected format:Copper strips for cables
WITHDRAWN published on 4.7.2005
Selected format:Copper strip for cables
WITHDRAWN published on 5.12.2014
Selected format:Welded brass tube
WITHDRAWN published on 31.3.1989
Selected format:Liquid encapsulated czochralski-grown gallium arsenide single crystals and As-cut slices
WITHDRAWN published on 31.3.1989
Selected format:Latest update: 2026-03-02 (Number of items: 2 264 418)
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